4spd backup wiring

you may want to check out Evans Wiring also. they are the people that build most Mopar wiring for everybody else, including the main dash harness that only sells through Yearone. they are good people and have all you needs.
Bill and Rose Evans do a lot of harnesses and they are good quality but dash harnesses are one thing they don’t do.
M&H are the ones that do the the dash harnesses sold by Year One and they are the only distributor for M&H.